<template>
	<view class="goods-item">
		<!-- 左侧区域 -->
		<view class="goods-item-left">
			<!-- 选择按钮 -->
			<radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler" />
			<image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
		</view>
		<!-- 右侧区域 -->
		<view class="goods-item-right">
			<!-- 商品名称 -->
			<view class="goods-name">{{ goods.goods_name }}</view>
			<view class="goods-info-box">
				<!-- 商品价格 -->
				<view class="goods-price">￥{{ goods.goods_price | toFixed }}</view>
				<!-- 商品数量 -->
				<uni-number-box
					:min="1"
					@change="numChangeHandler"
					:value="goods.goods_count"
					v-if="showNum">
				</uni-number-box>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name:"my-goods",
		props: {
			goods: {
				type: Object,
				default: {}
			},
			showRadio: {
				type: Boolean,
				// 默认情况不展示radio
				default: false
			},
			// 是否显示价格有测的 NumberBox 组件
			showNum: {
				type: Boolean,
				default: false
			}
		},
		data() {
			return {
				// 默认的图片
				defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			}
		},
		filters: {
			toFixed (num) {
				return Number(num).toFixed(2)
			}
		},
		methods: {
			// radio 组件的点击事件处理函数
			radioClickHandler () {
				this.$emit('radio-change', {
					// 商品的id
					goods_id: this.goods.goods_id,
					// 商品最新的勾选状态
					goods_state: !this.goods.goods_state
				})
			},
			// numberbox组件的change事件处理函数
			numChangeHandler (value) {
				this.$emit('num-change', {
					goods_id: this.goods.goods_id,
					goods_count: +value // 为了避免有可能值不是一个数值类型
				})
			}
		}
	}
</script>

<style lang="scss">
	.goods-item {
		display: flex;
		padding: 10px 5px;
		border-bottom: 1px solid #f0f0f0;
		width: 750rpx;
		box-sizing: border-box;
		.goods-item-left {
			display: flex;
			margin-right: 5px;
			justify-content: space-between;
			align-items: center;
			.goods-pic {
				width: 100px;
				height: 100px;
				display: block;
				margin-right: 5px;
			}
		}
		.goods-item-right {
			display: flex;
			flex-direction: column;
			justify-content: space-between;
			flex: 1;
			.goods-name {
				font-size: 13px;
			}
			.goods-info-box {
				display: flex;
				justify-content: space-between;
				align-items: center;
				.goods-price {
					color: #C00000;
					font-size: 16px;
				}
			}
		}
	}
</style>
